After a night at Bozeman we set off to Yellowstone National Park (90 miles away) where we entered the North Entrance by The Teddy Roosevelt Arch. I didn't realise how big Yellowstone is.
Our first stop was The Mammoth Hot Springs which was fantastic. We then drove on the North Loop stopping at viewpoints to see the panaromic views which were unbelievable. We had a ten minue unscheduled delay to let the Bison cross the road. Our next stop was the Sulphur pits, one of which Tony described as an evil looking hole in the earth.
Due to a road closure we had to drive 91 miles through the park ascending to over 10,000 ft to finally see Old Faithful. Boy was it worth the drive. I've never seen anything like it before. After waiting an hour Old Faithful finally let off steam.